[Discuss] Audacity

Wed Dec 5 10:23:30 EST 2018

Sounds like you need to look at your audio handler settings/ mixer such as jack or pulseaudio or other. I don’t know what your system uses. Also check audacity settings for input and level. 

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> On Dec 4, 2018, at 12:00 PM, discuss-request at blu.org wrote:
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> Today's Topics:
> 
>   1. Backup Postfix/Dovecot E-mail Server? (Kent Borg)
>   2. Re: Backup Postfix/Dovecot E-mail Server? (Dan Ritter)
>   3. Re: Backup Postfix/Dovecot E-mail Server? (Kent Borg)
>   4. Audacity has gone nuts (Nancy Allison)
>   5. Re: Audacity has gone nuts (Bill Ricker)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 3 Dec 2018 14:01:51 -0500
> From: Kent Borg <kentborg at borg.org>
> To: "discuss at blu.org" <discuss at blu.org>
> Subject: [Discuss] Backup Postfix/Dovecot E-mail Server?
> Message-ID: <1268268f-0c83-5190-6015-39aeec8c4a4f at borg.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Question about setting up Postfix/Dovecot machine as a backup e-mail server.
> 
> I run my own e-mail at home over a DSL connection over Verizon copper, 
> which is crappy service. I currently have no dial tone, though plucky 
> DSL is still working well enough for e-mail to get through. I have a 
> service call into Verizon (for Saturday--they don't exactly hop into 
> action, do they?), and I am worried they will break what DSL I have (it 
> isn't Verizon's). They have broken my DSL in the past when I called 
> about no dialtone. (This happens regularly.)
> 
> I should set up an e-mail backup. I have another static Linux machine I 
> could use, that has a static IP address, but the question is how to 
> configure it. Once upon a time I had a machine set up as a backup, but 
> it only queued up messages until the primary machine came back on line. 
> But sending machines do a decent job of queuing messages anyway, so that 
> doesn't buy much, so I turned it off.
> 
> I see three possibilities:
> 
> * Set up a backup that just queues messages.
> 
>     ?I don't really see the point.
> 
> * Set up a second server that acts like the first.
> 
>     ?I worry when I might do a cutover the IMAP server will confuse the
>    client. The client won't see old messages that were on the primary
>    server and so deletes its local copies.
> 
> * Set up something more clever that keeps the primary and backup in sync 
> so both IMAP servers hold the same messages.
> 
>    Man, that starts to get complicated, tricky to get right, hard to
>    test on a live system. (I have a backup domain name I could test on,
>    but that doesn't make it easy.)
> 
> Suggestions? Is there a standard solution I could use that is easy and 
> already debugged?
> 
> Thanks,
> 
> -kb
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 3 Dec 2018 17:57:39 -0500
> From: Dan Ritter <dsr at randomstring.org>
> To: Kent Borg <kentborg at borg.org>
> Cc: "discuss at blu.org" <discuss at blu.org>
> Subject: Re: [Discuss] Backup Postfix/Dovecot E-mail Server?
> Message-ID: <20181203225739.beatgxiplvzlt2kd at randomstring.org>
> Content-Type: text/plain; charset=iso-8859-1
> 
> Kent Borg wrote: 
>> Question about setting up Postfix/Dovecot machine as a backup e-mail server.
>> 
>> I should set up an e-mail backup. I have another static Linux machine I
>> could use, that has a static IP address, but the question is how to
>> configure it. Once upon a time I had a machine set up as a backup, but it
>> only queued up messages until the primary machine came back on line. But
>> sending machines do a decent job of queuing messages anyway, so that doesn't
>> buy much, so I turned it off.
> 
> This is called a Secondary MX, although you can have any number
> of them.
> 
>> I see three possibilities:
>> 
>> * Set up a backup that just queues messages.
>> 
>>    ?I don't really see the point.
> 
> It provides the illusion of high uptime, which might be
> important for you. In any case, it's a set of suspenders to 
> go with your belt.
> 
>> * Set up a second server that acts like the first.
>> 
>>    ?I worry when I might do a cutover the IMAP server will confuse the
>>   client. The client won't see old messages that were on the primary
>>   server and so deletes its local copies.
> 
> Yeah, that would be bad.
> 
>> * Set up something more clever that keeps the primary and backup in sync so
>> both IMAP servers hold the same messages.
> 
> High-availability is hard, although this is the easiest case:
> you list both machines in your MX records, and have your MTA
> deliver to a shared filesystem. DRBD is the usual choice.
> 
> Then your IMAP service has to deal with all your mail in the
> shared filesystem.
> 
> 
> -dsr-
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 3 Dec 2018 18:23:56 -0500
> From: Kent Borg <kentborg at borg.org>
> To: "discuss at blu.org" <discuss at blu.org>
> Subject: Re: [Discuss] Backup Postfix/Dovecot E-mail Server?
> Message-ID: <e51f9085-98bc-922f-b5ff-9b3107adb735 at borg.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
>> On 12/3/18 5:57 PM, Dan Ritter wrote:
>> This is called a Secondary MX, although you can have any number of them. 
> 
> Yes, I've done that before. But then what?
> 
>>> * Set up something more clever that keeps the primary and backup in sync so
>>> both IMAP servers hold the same messages.
>> High-availability is hard, although this is the easiest case:
>> you list both machines in your MX records, and have your MTA
>> deliver to a shared filesystem. DRBD is the usual choice.
> 
> Dovecot has a replication feature I might play with.
> 
> First, I need at least a cold-spare: a complete Postfix and Dovecot 
> server that I can point my DNS records to. And my clients (only my wife 
> and I) can point our clients at it as a completely e-mail server. I 
> think that's the first step.
> 
> Maybe I go to secondary MX and Dovecot replication after that, donno yet.
> 
> -kb
> 
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 3 Dec 2018 19:37:45 -0500
> From: Nancy Allison <nancythewriter7 at gmail.com>
> To: Boston Linux and Unix <discuss at blu.org>
> Subject: [Discuss] Audacity has gone nuts
> Message-ID:
>    <CAPnB49E6U3ij3-+oqnuOA0DWO6Vhq8wekA1kAe0ZZWEEOb-hqg at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Hi, all.
> 
> By any chance, does anyone on this list use Audacity? I used it to record
> streaming content with no problem until it suddenly went nuts and provided
> hugely distorted sound files, as if the volume had been turned up to 10. I
> looked through the settings and even removed it and reinstalled it and
> still got the same result.
> 
> I've looked in Audacity lists and found one question that was similar, but
> I can't follow the discussion technically. I'm not that technical. Has
> anyone on this list had a similar experience with Audacity? If so, how did
> you solve the problem? Thanks.
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Mon, 3 Dec 2018 19:54:32 -0500
> From: Bill Ricker <bill.n1vux at gmail.com>
> To: Nancy Allison <nancythewriter7 at gmail.com>
> Cc: Boston Linux and Unix <discuss at blu.org>
> Subject: Re: [Discuss] Audacity has gone nuts
> Message-ID:
>    <CAAbKA3XoLx1BHA-q26oyMEFSBSb+54-ifNF-ipkZmhkRq=LgGA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> On Mon, Dec 3, 2018 at 7:38 PM Nancy Allison <nancythewriter7 at gmail.com>
> wrote:
> 
>> Hi, all.
>> 
>> By any chance, does anyone on this list use Audacity? I used it to record
>> streaming content with no problem until it suddenly went nuts and provided
>> hugely distorted sound files, as if the volume had been turned up to 10. I
>> looked through the settings and even removed it and reinstalled it and
>> still got the same result.
>> 
> 
> I have used Audacity but only to edit content recorded elsewhere.
> 
> My limited understanding is that Audacity record controls, the streaming
> app's volume/level controls, and system master volume controls may all
> interact so you get to track down all the knobs to see which one is the
> problem?
> 
> 
> -- 
> Bill Ricker
> bill.n1vux at gmail.com
> https://www.linkedin.com/in/n1vux
> 
> 
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